CVE-2025-14799: Brevo (WordPress plugin) · Type Confusion
Affects Brevo (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 18 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| neeraj_slitBrevo – Email, SMS, Web Push, Chat, and more. | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, restrict access to the vulnerable REST API endpoint if possible and monitor for suspicious requests targeting `/wp-json/mailin/v1/mailin_disconnect`. Avoid exposing this endpoint publicly or implement additional access controls as a temporary mitigation.
Description
The Brevo - Email, SMS, Web Push, Chat, and more.plugin for WordPress is vulnerable to authorization bypass due to type juggling in all versions up to, and including, 3.3.0. This is due to the use of loose comparison (==) instead of strict comparison (===) when validating the installation ID in the `/wp-json/mailin/v1/mailin_disconnect` REST API endpoint. This makes it possible for unauthenticated attackers to disconnect the Brevo integration, delete the API key, remove all subscription forms, and reset plugin settings by sending a boolean `true` value for the `id` parameter, which bypasses the authorization check through PHP type juggling.
References
- wordfence.com/threat-intel/vulnerabilities/id/f29e5b19-2505-4b02-92c7-071833de6bc2?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/mailin/tags/3.2.9/sendinblue.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/mailin/tags/3.2.9/sendinblue.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3448639/ (opens in a new tab)